/* Shared navigation; the content and print layouts stay page-specific. */
.site-header{border-bottom:1px solid #dce2e6;background:#fafbfc;color:#222a30}
.site-header-inner{max-width:1180px;margin:auto;padding:16px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-brand{font-size:20px;font-weight:650;letter-spacing:-.6px;text-decoration:none!important;line-height:1.4}
.site-brand span{display:block;font-size:12px;letter-spacing:0;font-weight:400;color:#52616b;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.site-nav a{font-size:16px;display:inline-flex;align-items:center;min-height:44px;text-decoration:none!important;color:#45545f}
.site-nav a:hover,.site-nav a[aria-current=page]{color:#222a30;text-decoration:underline!important;text-underline-offset:7px}
.site-header a:focus-visible{outline:2px solid #355e70;outline-offset:5px}
.site-skip{position:absolute;left:24px;top:-100px;z-index:10;background:white;padding:16px}.site-skip:focus{top:8px}
@media(max-width:767px){.site-header-inner{padding:14px 24px;display:block}.site-brand span{display:none}.site-nav{gap:23px;margin-top:6px}.site-nav a{font-size:15px;min-height:40px}}
@media print{.site-header,.site-skip{display:none!important}}

.language-toggle{font:inherit;font-size:14px;line-height:1;white-space:nowrap;cursor:pointer;border:1px solid #bac9d1;border-radius:8px;background:#fff;color:#355e70;min-height:40px;min-width:66px;padding:10px 13px;touch-action:manipulation}.language-toggle[hidden]{display:none}.language-toggle:hover{background:#eef3f5}.language-toggle:focus-visible{outline:2px solid #355e70;outline-offset:4px}.language-toggle:active{transform:scale(.97)}
.contact-section .contact-email{display:flex;gap:16px;align-items:baseline;flex-wrap:wrap;margin-bottom:26px;font-size:20px}.contact-email span{font-size:15px;color:#52616b}.contact-email a{color:#222a30;text-decoration:underline;text-underline-offset:5px;overflow-wrap:anywhere}
html[lang="zh-CN"] body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] h3,html[lang="zh-CN"] h4{letter-spacing:-.02em}html[lang="zh-CN"] .eyebrow{letter-spacing:.04em}html[lang="zh-CN"] .intro{line-height:1.8}
@media(max-width:767px){.site-header-inner{position:relative}.language-toggle{position:absolute;right:24px;top:10px}.site-nav{gap:23px}.contact-section .contact-email{font-size:18px;gap:10px}html[lang="zh-CN"] .oc-hero-title p.hero-value{max-width:290px}html[lang="zh-CN"] .hero-meta dd{line-height:1.7}}